Ladder clamp



FIG. 1 is a perspective view of a ladder clamp showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a third perspective view thereof;

FIG. 4 is yet another perspective view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a front elevation view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof; and,

FIG. 11 is another perspective view thereof in an in-use environment attached to a swimming pool hand rail and supporting a telescopic swimming and exercise device.

The broken lines in FIG. 11 depict environment only and form no part of the claimed design. 

The ornamental design for a ladder clamp, as shown and described. 